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Pixels.cpp
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Pixels.cpp
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/*
* Pixels. Graphics library for TFT displays.
*
* Copyright (C) 2012-2015 Igor Repinetski
*
* The code is written in C/C++ for Arduino and can be easily ported to any microcontroller by rewritting the low level pin access functions.
*
* Text output methods of the library rely on Pixelmeister's font data format. See: http://pd4ml.com/pixelmeister
*
* This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
*
* This library includes some code portions and algoritmic ideas derived from works of
* - Andreas Schiffler -- aschiffler at ferzkopp dot net (SDL_gfx Project)
* - K. Townsend http://microBuilder.eu (lpc1343codebase Project)
*/
#include "Pixels.h"
RGB::RGB(uint8_t r, uint8_t g, uint8_t b) {
setColor(r, g, b);
}
RGB::RGB() {
}
void RGB::setColor(int32_t r, int32_t g, int32_t b) {
red = r;
green = g;
blue = b;
col = (((uint16_t)red / 8) << 11) | ((green / 4) << 5) | (blue / 8);
}
RGB RGB::convert565toRGB(uint16_t color) {
uint8_t r = ((0xf800 & color)>>11) * 255 / 31;
uint8_t g = ((0x7e0 & color)>>5) * 255 / 63;
uint8_t b = (0x1f & color) * 255 / 31;
return RGB(r, g, b);
}
uint16_t RGB::convertRGBto565(RGB color) {
return ((color.red / 8) << 11) | ((color.green / 4) << 5) | (color.blue / 8);
}
uint16_t RGB::convertTo565() {
return col; // ((red / 8) << 11) | ((green / 4) << 5) | (blue / 8);
}
regtype *registerCS; // chip select
regsize bitmaskCS;
PixelsBase::PixelsBase(uint16_t width, uint16_t height) {
deviceWidth = width < height ? width : height;
deviceHeight = width > height ? width : height;
this->width = width;
this->height = height;
setOrientation( width > height ? LANDSCAPE : PORTRAIT );
relativeOrigin = true;
currentScroll = 0;
scrollSupported = true;
scrollEnabled = true;
extraScrollDelay = 0;
lineWidth = 1;
fillDirection = 0;
computedBgColor = new RGB(0, 0, 0);
computedFgColor = new RGB(0, 0, 0);
bgBuffer = new RGB(0, 0, 0);
fgBuffer = new RGB(0, 0, 0);
gfxOpNestingDepth = 0;
setBackground(0,0,0);
setColor(0xFF,0xFF,0xFF);
}
void PixelsBase::setOrientation( uint8_t direction ){
if ( (orientation < 2 && direction > 1) || (orientation > 1 && direction < 2) ) {
currentScroll = 2 * deviceHeight - currentScroll;
currentScroll %= deviceHeight;
}
orientation = direction;
landscape = false;
switch ( orientation ) {
case LANDSCAPE_FLIP:
case LANDSCAPE:
width = deviceHeight;
height = deviceWidth;
landscape = true;
break;
case PORTRAIT_FLIP:
width = deviceWidth;
height = deviceHeight;
break;
default:
width = deviceWidth;
height = deviceHeight;
orientation = PORTRAIT;
break;
}
}
/* Graphic primitives */
void PixelsBase::clear() {
boolean s = relativeOrigin;
relativeOrigin = false;
RGB* sav = getColor();
setColor(background);
fillRectangle(0, 0, width, height);
setColor(sav);
relativeOrigin = s;
}
RGB* PixelsBase::getPixel(int16_t x, int16_t y) {
return getBackground();
}
void PixelsBase::drawLine(int16_t x1, int16_t y1, int16_t x2, int16_t y2) {
beginGfxOperation();
if (y1 == y2 && lineWidth == 1) {
hLine(x1, y1, x2);
} else if (x1 == x2 && lineWidth == 1) {
vLine(x1, y1, y2);
} else {
if ( lineWidth == 1 ) {
if ( antialiasing ) {
drawLineAntialiased(x1, y1, x2, y2);
} else {
int16_t dx;
int16_t dy;
int16_t sx;
int16_t sy;
if ( x2 > x1 ) {
dx = x2 - x1;
sx = 1;
} else {
dx = x1 - x2;
sx = -1;
}
if ( y2 > y1 ) {
dy = y2 - y1;
sy = 1;
} else {
dy = y1 - y2;
sy = -1;
}
int16_t x = x1;
int16_t y = y1;
int16_t err = dx - dy;
int16_t e2;
while (true) {
drawPixel(x, y);
if (x == x2 && y == y2) {
break;
}
e2 = err << 1;
if (e2 > -dy) {
err = err - dy;
x = x + sx;
}
if (e2 < dx) {
err = err + dx;
y = y + sy;
}
}
}
} else {
drawFatLineAntialiased(x1, y1, x2, y2);
}
}
endGfxOperation();
}
void PixelsBase::drawRectangle(int16_t x, int16_t y, int16_t width, int16_t height) {
beginGfxOperation();
hLine(x, y, x+width-2);
vLine(x+width-1, y, y+height-2);
hLine(x+1, y+height-1, x+width-1);
vLine(x, y+1, y+height-1);
endGfxOperation();
}
void PixelsBase::fillRectangle(int16_t x, int16_t y, int16_t width, int16_t height) {
beginGfxOperation();
fill(foreground->convertTo565(), x, y, x+width-1, y+height-1);
endGfxOperation();
}
void PixelsBase::drawRoundRectangle(int16_t x, int16_t y, int16_t width, int16_t height, int16_t radius) {
if ( radius < 1 ) {
drawRectangle(x, y, width, height);
return;
}
if ( radius > height >> 2 ) {
radius = height >> 2;
}
if ( radius > width >> 1 ) {
radius = width >> 1;
}
beginGfxOperation();
if ( antialiasing ) {
drawRoundRectangleAntialiased(x, y, width, height, radius, radius, 0);
} else {
height--;
width--;
hLine(x + radius, y + height, x + width - radius);
hLine(x + radius, y, x + width - radius );
vLine(x + width, y + radius, y + height - radius);
vLine(x, y + radius, y + height - radius);
int16_t shiftX = width - (radius << 1);
int16_t shiftY = height - (radius << 1);
int16_t f = 1 - radius;
int16_t ddF_x = 1;
int16_t ddF_y = - (radius << 1);
int16_t x1 = 0;
int16_t y1 = radius;
int16_t xx = x + radius;
int16_t yy = y + radius;
while (x1 < y1) {
if (f >= 0) {
y1--;
ddF_y += 2;
f += ddF_y;
}
x1++;
ddF_x += 2;
f += ddF_x;
drawPixel(xx + x1 + shiftX, yy + y1 + shiftY);
drawPixel(xx - x1, yy + y1 + shiftY);
drawPixel(xx + x1 + shiftX, yy - y1);
drawPixel(xx - x1, yy - y1);
drawPixel(xx + y1 + shiftX, yy + x1 + shiftY);
drawPixel(xx - y1, yy + x1 + shiftY);
drawPixel(xx + y1 + shiftX, yy - x1);
drawPixel(xx - y1, yy - x1);
}
}
endGfxOperation();
}
void PixelsBase::fillRoundRectangle(int16_t x, int16_t y, int16_t width, int16_t height, int16_t radius) {
if ( radius < 1 ) {
fillRectangle(x, y, width, height);
return;
}
if ( radius > height >> 1 ) {
radius = height >> 1;
}
if ( radius > width >> 1 ) {
radius = width >> 1;
}
beginGfxOperation();
if ( antialiasing ) {
drawRoundRectangleAntialiased(x, y, width-1, height-1, radius, radius, true);
}
fillRectangle(x + radius, y + height - radius, width - (radius << 1), radius);
fillRectangle(x, y + radius, width, height - (radius << 1));
fillRectangle(x + radius, y, width - (radius << 1), radius);
height--;
width--;
int16_t shiftX = width - (radius << 1);
int16_t shiftY = height - (radius << 1);
int16_t f = 1 - radius;
int16_t ddF_x = 1;
int16_t ddF_y = -(radius << 1);
int16_t x1 = 0;
int16_t y1 = radius;
int16_t xx = x + radius;
int16_t yy = y + radius;
while (x1 < y1) {
if (f >= 0) {
y1--;
ddF_y += 2;
f += ddF_y;
}
x1++;
ddF_x += 2;
f += ddF_x;
hLine(xx + shiftX, yy - y1, xx + shiftX + x1);
hLine(xx - x1, yy - y1, xx);
hLine(xx + shiftX, yy - x1, xx + shiftX + y1);
hLine(xx - y1, yy - x1, xx);
hLine(xx + shiftX, yy + y1 + shiftY, xx + x1 + shiftX);
hLine(xx + shiftX, yy + x1 + shiftY, xx + shiftX + y1);
hLine(xx - x1, yy + y1 + shiftY, xx);
hLine(xx - y1, yy + x1 + shiftY, xx);
}
endGfxOperation();
}
void PixelsBase::drawCircle(int16_t x, int16_t y, int16_t r) {
drawOval(x-r, y-r, r<<1, r<<1);
// if ( antialiasing ) {
// drawCircleAntialiaced(x, y, r, false);
// } else {
// int16_t f = 1 - r;
// int16_t ddF_x = 1;
// int16_t ddF_y = -2 * r;
// int16_t x1 = 0;
// int16_t y1 = r;
// drawPixel(x, y + r);
// drawPixel(x, y - r);
// drawPixel(x + r, y);
// drawPixel(x - r, y);
// while (x1 < y1) {
// if (f >= 0) {
// y1--;
// ddF_y += 2;
// f += ddF_y;
// }
// x1++;
// ddF_x += 2;
// f += ddF_x;
// drawPixel(x + x1, y + y1);
// drawPixel(x - x1, y + y1);
// drawPixel(x + x1, y - y1);
// drawPixel(x - x1, y - y1);
// drawPixel(x + y1, y + x1);
// drawPixel(x - y1, y + x1);
// drawPixel(x + y1, y - x1);
// drawPixel(x - y1, y - x1);
// }
// }
}
void PixelsBase::fillCircle(int16_t x, int16_t y, int16_t r) {
// int16_t yy;
// int16_t xx;
fillOval(x-r, y-r, r<<1, r<<1);
// if ( antialiasing ) {
// drawCircleAntialiaced(x, y, r, true);
// }
// for (yy = -r; yy <= r; yy++) {
// for (xx = -r; xx <= r; xx++) {
// if ((xx * xx) + (yy * yy) <= (r * r)) {
// drawPixel(x+xx, y+yy);
// }
// }
// }
}
void PixelsBase::drawOval(int16_t x, int16_t y, int16_t width, int16_t height) {
if ((width <= 0) || (height <= 0)) {
return;
}
beginGfxOperation();
if ( antialiasing ) {
drawRoundRectangleAntialiased(x, y, width, height, width/2, height/2, 0);
} else {
height--;
width--;
int16_t ix, iy;
int16_t h, i, j, k;
int16_t oh, oi, oj, ok;
int16_t xmh, xph, ypk, ymk;
int16_t xmi, xpi, ymj, ypj;
int16_t xmj, xpj, ymi, ypi;
int16_t xmk, xpk, ymh, yph;
int16_t rx = width / 2;
int16_t ry = height / 2;
int16_t xx = x + rx;
int16_t yy = y + ry;
if (width == 1) {
vLine(xx, yy, yy + height - 1);
endGfxOperation();
return;
}
if (height == 1) {
hLine(xx, yy, xx + width - 1);
endGfxOperation();
return;
}
oh = oi = oj = ok = 0xFFFF;
if (width > height) {
ix = 0;
iy = rx << 6;
do {
h = (ix + 32) >> 6;
i = (iy + 32) >> 6;
j = (h * ry) / rx;
k = (i * ry) / rx;
if (((ok != k) && (oj != k)) || ((oj != j) && (ok != j)) || (k != j)) {
xph = xx + h;
xmh = xx - h;
if (k > 0) {
ypk = yy + k;
ymk = yy - k;
drawPixel(xmh, ypk);
drawPixel(xph, ypk);
drawPixel(xmh, ymk);
drawPixel(xph, ymk);
} else {
drawPixel(xmh, yy);
drawPixel(xph, yy);
}
ok = k;
xpi = xx + i;
xmi = xx - i;
if (j > 0) {
ypj = yy + j;
ymj = yy - j;
drawPixel(xmi, ypj);
drawPixel(xpi, ypj);
drawPixel(xmi, ymj);
drawPixel(xpi, ymj);
} else {
drawPixel(xmi, yy);
drawPixel(xpi, yy);
}
oj = j;
}
ix = ix + iy / rx;
iy = iy - ix / rx;
} while (i > h);
} else {
ix = 0;
iy = ry << 6;
do {
h = (ix + 32) >> 6;
i = (iy + 32) >> 6;
j = (h * rx) / ry;
k = (i * rx) / ry;
if (((oi != i) && (oh != i)) || ((oh != h) && (oi != h) && (i != h))) {
xmj = xx - j;
xpj = xx + j;
if (i > 0) {
ypi = yy + i;
ymi = yy - i;
drawPixel(xmj, ypi);
drawPixel(xpj, ypi);
drawPixel(xmj, ymi);
drawPixel(xpj, ymi);
} else {
drawPixel(xmj, yy);
drawPixel(xpj, yy);
}
oi = i;
xmk = xx - k;
xpk = xx + k;
if (h > 0) {
yph = yy + h;
ymh = yy - h;
drawPixel(xmk, yph);
drawPixel(xpk, yph);
drawPixel(xmk, ymh);
drawPixel(xpk, ymh);
} else {
drawPixel(xmk, yy);
drawPixel(xpk, yy);
}
oh = h;
}
ix = ix + iy / ry;
iy = iy - ix / ry;
} while (i > h);
}
}
endGfxOperation();
}
void PixelsBase::fillOval(int16_t xx, int16_t yy, int16_t width, int16_t height) {
height--;
width--;
int16_t rx = width / 2;
int16_t ry = height / 2;
int16_t x = xx + rx;
int16_t y = yy + ry;
int16_t ix, iy;
int16_t h, i, j, k;
int16_t oh, oi, oj, ok;
int16_t xmh, xph;
int16_t xmi, xpi;
int16_t xmj, xpj;
int16_t xmk, xpk;
if ((rx < 0) || (ry < 0)) {
return;
}
if (width < 2) {
vLine(xx, yy, yy + height);
return;
}
if (height < 2) {
hLine(xx, yy, xx + width);
return;
}
beginGfxOperation();
if ( antialiasing ) {
drawRoundRectangleAntialiased(x-rx, y-ry, rx<<1, ry<<1, rx, ry, true);
}
oh = oi = oj = ok = 0xFFFF;
if (rx > ry) {
ix = 0;
iy = rx << 6;
do {
h = (ix + 32) >> 6;
i = (iy + 32) >> 6;
j = (h * ry) / rx;
k = (i * ry) / rx;
if ((ok != k) && (oj != k)) {
xph = x + h;
xmh = x - h;
if (k > 0) {
hLine(xmh, y + k, xph);
hLine(xmh, y - k, xph);
} else {
hLine(xmh, y, xph);
}
ok = k;
}
if ((oj != j) && (ok != j) && (k != j)) {
xmi = x - i;
xpi = x + i;
if (j > 0) {
hLine(xmi, y + j, xpi);
hLine(xmi, y - j, xpi);
} else {
hLine(xmi, y, xpi);
}
oj = j;
}
ix = ix + iy / rx;
iy = iy - ix / rx;
} while (i > h);
} else {
ix = 0;
iy = ry << 6;
do {
h = (ix + 32) >> 6;
i = (iy + 32) >> 6;
j = (h * rx) / ry;
k = (i * rx) / ry;
if ((oi != i) && (oh != i)) {
xmj = x - j;
xpj = x + j;
if (i > 0) {
hLine(xmj, y + i, xpj);
hLine(xmj, y - i, xpj);
} else {
hLine(xmj, y, xpj);
}
oi = i;
}
if ((oh != h) && (oi != h) && (i != h)) {
xmk = x - k;
xpk = x + k;
if (h > 0) {
hLine(xmk, y + h, xpk);
hLine(xmk, y - h, xpk);
} else {
hLine(xmk, y, xpk);
}
oh = h;
}
ix = ix + iy / ry;
iy = iy - ix / ry;
} while (i > h);
}
endGfxOperation();
}
void PixelsBase::drawIcon(int16_t xx, int16_t yy, prog_uchar* data) {
int16_t fontType = BITMASK_FONT;
if ( pgm_read_byte_near(data + 1) == 'a' ) {
fontType = ANTIALIASED_FONT;
}
int16_t length = ((0xFF & (int32_t)pgm_read_byte_near(data + 2)) << 8) + (0xFF & (int32_t)pgm_read_byte_near(data + 3));
int16_t height = pgm_read_byte_near(data + 4);
beginGfxOperation();
drawGlyph(fontType, false, xx, yy, height, data + 1, length-1);
endGfxOperation();
}
void PixelsBase::cleanIcon(int16_t xx, int16_t yy, prog_uchar* data) {
int16_t fontType = BITMASK_FONT;
if ( pgm_read_byte_near(data + 1) == 'a' ) {
fontType = ANTIALIASED_FONT;
}
int16_t length = ((0xFF & (int32_t)pgm_read_byte_near(data + 2)) << 8) + (0xFF & (int32_t)pgm_read_byte_near(data + 3));
int16_t height = pgm_read_byte_near(data + 4);
beginGfxOperation();
drawGlyph(fontType, true, xx, yy, height, data + 1, length-1);
endGfxOperation();
}
int8_t PixelsBase::drawBitmap(int16_t x, int16_t y, int16_t width, int16_t height, prog_uint16_t* data) {
Bounds bb(x, y, x+width-1, y+height-1);
if( !transformBounds(bb) ) {
return 1;
}
if( !checkBounds(bb) ) {
return 1;
}
beginGfxOperation();
setRegion(bb.x1, bb.y1, bb.x2, bb.y2);
int sc = currentScroll;
if ( sc == 0 ) {
sc = deviceHeight;
}
switch( orientation ) {
case PORTRAIT:
{
for ( int16_t j = bb.y1; j <= bb.y2; j++ ) {
for ( int16_t i = bb.x1; i <= bb.x2; i++ ) {
int16_t px = pgm_read_word_near(data + (j - y) * width + i - x);
setCurrentPixel(px);
}
}
}
break;
case LANDSCAPE:
{
int h1 = height - max(0, (y + height) - deviceWidth) - 1;
int w1 = width - max(0, (x + width) - sc) - 1;
int w = bb.x2 - bb.x1 + 1;
int h = bb.y2 - bb.y1 + 1;
for ( int16_t j = h - 1; j >= 0; j-- ) {
for ( int16_t i = 0; i < w; i++ ) {
int16_t px = pgm_read_word_near(data + (h1 - i) * width + (w1 - j));
setCurrentPixel(px);
}
}
}
break;
case PORTRAIT_FLIP:
{
int h = bb.y2 - bb.y1 + 1;
int w = bb.x2 - bb.x1 + 1;
int cutH = y < 0 ? 0 : height - h;
int cutW = x < 0 ? 0 : width - w;
for ( int16_t j = 0; j < h; j++ ) {
for ( int16_t i = 0; i < w; i++ ) {
int16_t px = pgm_read_word_near(data + (height - j - 1 - cutH) * width + (width - i - 1 - cutW));
setCurrentPixel(px);
}
}
}
break;
case LANDSCAPE_FLIP:
{
int h1 = height - max(0, (y + height) - deviceWidth) - 1;
int w1 = width - max(0, (x + width) - sc) - 1;
int w = bb.x2 - bb.x1 + 1;
int h = bb.y2 - bb.y1 + 1;
for ( int16_t j = 0; j < h; j++ ) {
for ( int16_t i = w - 1; i >= 0; i-- ) {
int16_t px = pgm_read_word_near(data + (h1 - i) * width + (w1 - j));
setCurrentPixel(px);
}
}
}
break;
}
endGfxOperation();
return 0;
}
int8_t PixelsBase::drawCompressedBitmap(int16_t x, int16_t y, prog_uchar* data) {
if ( data == NULL ) {
return -1;
}
if ( pgm_read_byte_near(data + 0) != 'Z' ) {
// Unknown compression method
return -2;
}
int32_t compressedLen = ((0xFF & (int32_t)pgm_read_byte_near(data + 1)) << 16) + ((0xFF & (int32_t)pgm_read_byte_near(data + 2)) << 8) + (0xFF & (int32_t)pgm_read_byte_near(data + 3));
if ( compressedLen < 0 ) {
// Unknown compression method or compressed data inconsistence
return -3;
}
int32_t resultLen = ((0xFF & (int32_t)pgm_read_byte_near(data + 4)) << 16) + ((0xFF & (int32_t)pgm_read_byte_near(data + 5)) << 8) + (0xFF & (int32_t)pgm_read_byte_near(data + 6));
if ( resultLen < 0 ) {
// Unknown compression method or compression format error
return resultLen;
}
uint8_t windowLen = 0xFF & (int16_t)pgm_read_byte_near(data + 7);
if ( windowLen < 0 || windowLen > 254 ) {
// corrupted content
return -5;
}
int16_t width = ((0xFF & (int32_t)pgm_read_byte_near(data + 8)) << 8) + (0xFF & (int32_t)pgm_read_byte_near(data + 9));
if ( width < 0 ) {
// Unknown compression method or compression format error (width parameter is invalid)
return -6;
}
int16_t height = ((0xFF & (int32_t)pgm_read_byte_near(data + 10)) << 8) + (0xFF & (int32_t)pgm_read_byte_near(data + 11));
if ( height < 0 ) {
// Unknown compression method or compression format error (height parameter is invalid)
return -7;
}
uint8_t window[windowLen];
int16_t wptr = 0;
int32_t ctr = 0;
uint8_t buf;
bool bufEmpty = true;
int* raster = NULL;
int rasterPtr = 0;
int rasterLine = y;
raster = new int[width];
beginGfxOperation();
BitStream bs( data, compressedLen, 96 );
while ( true ) {
uint8_t bit = bs.readBit();
if ( bit == 0 ) { // literal
uint8_t bits = bs.readBits(8);
if ( bufEmpty ) {
buf = bits;
bufEmpty = false;
} else {
uint16_t px = buf;
px <<= 8;
px |= bits;
raster[rasterPtr++] = px;
if ( rasterPtr == width ) {
Bounds bb(x, rasterLine, x + width - 1, rasterLine);
if( transformBounds(bb) && checkBounds(bb) ) {
setRegion(bb.x1, bb.y1, bb.x2, bb.y2);
int ww = width;
int corr = 0;
if (bb.x1 == bb.x2) {
ww = bb.y2 - bb.y1 + 1;
} else {
ww = bb.x2 - bb.x1 + 1;
}
if (x < 0) {
corr = -x;
ww += corr;
}
if ( orientation < 2 ) {
for ( int i = corr; i < ww; i++ ) {
setCurrentPixel(raster[i]);
}
} else {
for ( int i = min(width, ww - 1); i >= corr; i-- ) {
setCurrentPixel(raster[i]);
}
}
}
rasterLine++;
rasterPtr = 0;
}
bufEmpty = true;
}
ctr++;
window[wptr++] = bits;
if ( wptr >= windowLen ) {
wptr -= windowLen;
}
} else {
uint8_t offset = (uint8_t)bs.readNumber() - 1;
uint8_t matchCount = (uint8_t)bs.readNumber() - 1;
while( matchCount-- > 0 ) {
int16_t p1 = wptr - offset;
while ( p1 < 0 ) {
p1 += windowLen;
}
while ( p1 >= windowLen ) {
p1 -= windowLen;
}
int16_t p2 = wptr;
while ( p2 >= windowLen ) {
p2 -= windowLen;
}
wptr++;
ctr++;
if ( bufEmpty ) {
buf = window[p1];
bufEmpty = false;
} else {
uint16_t px = buf;
px <<= 8;
px |= window[p1];
raster[rasterPtr++] = px;
if ( rasterPtr == width ) {
Bounds bb(x, rasterLine, x + width - 1, rasterLine);
if( transformBounds(bb) && checkBounds(bb) ) {
setRegion(bb.x1, bb.y1, bb.x2, bb.y2);
int corr = 0;
int ww;
if (bb.x1 == bb.x2) {
ww = bb.y2 - bb.y1 + 1;
} else {
ww = bb.x2 - bb.x1 + 1;
}
if (x < 0) {
corr = -x;
ww += corr;
}
if ( orientation < 2 ) {
for ( int i = corr; i < ww; i++ ) {
setCurrentPixel(raster[i]);
}
} else {
for ( int i = min(width, ww - 1); i >= corr; i-- ) {
setCurrentPixel(raster[i]);
}
}
}
rasterLine++;
rasterPtr = 0;
}
bufEmpty = true;
}
window[p2] = window[p1];
}
while ( wptr >= windowLen ) {
wptr -= windowLen;
}
}
if ( ctr > resultLen ) {
break;
}
}
delete raster;
endGfxOperation();
return 0;
}
int8_t PixelsBase::loadBitmap(int16_t x, int16_t y, int16_t sx, int16_t sy, String path) {
// int16_t* data = loadFileBytes( path );
return 0; // drawBitmap(x, y, sx, sy, data);
}
/* ------- Antialiasing ------- */
/* To be overriden with Pixels_Antialiasing.h */
void PixelsBase::drawLineAntialiased(int16_t x1, int16_t y1, int16_t x2, int16_t y2) {}
void PixelsBase::drawFatLineAntialiased(int16_t x1, int16_t y1, int16_t x2, int16_t y2) {}
void PixelsBase::drawRoundRectangleAntialiased(int16_t x, int16_t y, int16_t width, int16_t height, int16_t rx, int16_t ry, boolean bordermode) {}
void PixelsBase::drawCircleAntialiaced( int16_t x, int16_t y, int16_t radius, boolean bordermode ) {}
/* TEXT */
int PixelsBase::setFont(prog_uchar font[]) {
int16_t p1 = pgm_read_byte_near(font + 0);
int16_t p2 = pgm_read_byte_near(font + 1);
if ( p1 != 'Z' || p2 != 'F' ) {
// Serial.print("Invalid font prefix ");
// Serial.print( p1 );
// Serial.print( " " );
// Serial.println( p2 );
currentFont = NULL;
return -1;
}
int16_t fontType = pgm_read_byte_near(font + 2);
if ( fontType != ANTIALIASED_FONT && fontType != BITMASK_FONT ) {
// Serial.println("Unsupported font type");
currentFont = NULL;
return -1;
}
currentFont = font;
return 0;
}
void PixelsBase::print(int16_t xx, int16_t yy, String text, int8_t kerning[]) {
beginGfxOperation();
printString(xx, yy, text, 0, kerning);
endGfxOperation();
}
#ifndef NO_TEXT_WRAP
int16_t PixelsBase::computeBreakPos(String text, int16_t t) {
int16_t breakPos = -1;
String s = t == 0 ? text : text.substring(t, text.length());
int16_t w = getTextWidth(s);
if ( w + caretX > width - textWrapMarginRight || text.indexOf('\n') >= 0 ) {
char prev = 0;
w = 0;
for ( uint16_t j = t; j < text.length(); j++ ) {
char cc = text.charAt(j);